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P&T Control_20-12-00136_UT535E_Brasil _V2
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Interface to external systems
Interface to drive motor starter. (Project dependent. To be settled at interface meeting)
-
Drive motor RPM order signal, 4 - 20 mA.
The signal has to be galvanic isolated at the governor side.
-
RPM feedback signal
4-20mA signal from the frequency converter. Closed when frequency converter fault.
-
Common Alarm Drive RPM (Reduce load)
Potential free contact from the frequency converter. Closed = frequency converter alarm
-
Frequency Converter fault/ trip (autostop).
Potential free contact from the frequency converter. Closed = frequency converter fault.
-
Frequency Converter reset.
Potential free contact to the frequency converter. Closed = reset (pulse)
-
Start Frequency Converter
Potential free contact to the frequency converter. Closed = start (pulse)
-
Stop/ Autostop Frequency Converter
Potential free contact to the frequency converter. Closed = stop (pulse)
-
Emergency Stop Frequency Converter
Potential free contact to the frequency converter. Closed = stop (pulse)
Loop monitored in Frequency Converter (resistors in each control panel)
-
Interlock start/Auto stop Motor
In case of too low gear lub. oil pressure, a potential free relay contact is given to the engine control
system for immediately stop of the engine.
Open = stop.
-
Frequency Converter ready to run if handle out of zero.
Potential free contact from the frequency converter.
Closed = frequency converter started.
-
Power limitation.
Potential free contact from the frequency converter. Closed = power limited in drive.
-
Local/ emerg. control
Potential free contact from the frequency converter. Closed = local
DP Interface
The remote control is provided with interface for an ICON DP system.
Communication is via Ethernet.
(Other DP system will be interfaced through hardwired signals)
Signals required from the DP system:
-
Closing contact (potential free) to engage the DP mode. (From selector switch).
-
Request for control.
-
Speed control signal
-
Steering control signal
Signals available to the DP system:
-
Remote control is ready for DP
-
Remote control acknowledge of DP mode.
-
Propeller RPM feedback signal
-
Steering feedback signal
-
Power reduced signal
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